Dacite and Trondhjemite Definition

Definition of Dacite and Trondhjemite

The general Dacite and Trondhjemite definition can be stated as: Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. On the other hand, Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Along with definition of Dacite and Trondhjemite, get to know about Properties of Dacite and Trondhjemite. Get to know more information about Dacite and Trondhjemite origin and discoverer, etymology and class.

History of Dacite and Trondhjemite

The history of Dacite and Trondhjemite gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Dacite and Trondhjemite Origin and Discoverer

Dacite and Trondhjemite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Dacite and Trondhjemite. In this section, you will know about Dacite and Trondhjemite Origin and Discoverer. Origin of Dacite is Romania and Moldova, Europe whereas Origin of Trondhjemite is Tonale, Italy. It is interesting to know the name of Dacite and Trondhjemite discoverer. The discoverer of Dacite and Trondhjemite are Unknown.

Etymology of Dacite and Trondhjemite

Along with Dacite and Trondhjemite definition, know more about the etymology of Dacite and Trondhjemite. Etymology of Dacite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Dacite and Formation of Trondhjemite. The etymology of Dacite is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described while that of Trondhjemite is From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Dacite and Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Dacite and Trondhjemite are listed below.

For Dacite,

• Sub-class: Durable Rock and Soft Rock
• Group: Volcanic
• Other Categories: Fine grained rock, Medium grained rock and Opaque rock

For Trondhjemite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock